Connecting-rod bearing



Patented Decplsij'lgso, 4,

UNlTEDsTATEs sitas G, REINHARD, or TOLEDO, Iowa'y coNNno'rING-non langzamer` Apparition mea umn s, 192s. serial no. 260,024. e

The object of they invention isto improve the construction of the bearing of a connect- .ing rod on they crank pinof an enginecrank shaft, lso that the frequent adjustment, now` Y generally necessary to compensate for'we'ar, will be eliminated; toprovide a bearin'gbetween theconnecting rrod 'and crank shaft which will be free running and notjlikely to bind; and to provide -a `ball bearingfor the crank pin of a crank shaft which may be mounted on the shaft after the latter has been comleted'and without the necessity for'the sha assemblable'to effect completion. ,4 c, v With this object in lView, the invention consists in a constructionand combination of parts of which4 a preferred embodimentfis illustrated inthe vaccompanying drawings,

pin 11v is peripherally groovedas indicated v at 12 for the reception of the balls 14. T he crank pins 11 and cranks 15 of the shaft are integrally connected and the, retainer 416 Y which constitutes an element of the ball bearing, is slipped around Vover the crank onto` the pin 11 by which it is tobe carried and the balls 14 thenset in the'. roove 12 under thc retainer and Vall having y the crankpin by sliding it aroun Vthe Yc'rjmk portions of the shaft. i

In order that adequate resistance to wear" may be had, the crank pins in the region of the grooves 12 are `case-hal'dened, sothat the balls, while tur 'ng freely, may. not 'subject the crank inso undue wear. v v The connecting rod 18` alsoszfollowsthe 5 usual practice with thelexception that-the c i having to `be made, in separateparts i,

` en positionedfthe` race ring 17- is vforced vover the balls intol en-v closing relation with he retainer, the race*- ringbeing brought to its proper osition, on fture.

vcap portion 19;,` detachably secured to it by'means offour clamping screws 20 positioned at they` corners ofthe cap rather than two positioned onoppositelsides at the center. It is preferable toemploy kclamping screws orifice i with socketed heads such as indlcated at 21 i v so that `they may be screwed upQor'releasedvby" means of apin* wrench.` The cap and cony nected` portion'of fthe connectingl rod con-v stitute thebearing element of the latter and.7

Ythe two arev internally grooved as indicated at 22 to receive the ballbearing .mounted on auvv thefcrank pin. In the assembling operation,

the cap 19 lis screwed downtight against the ball bearing race ring and by'reason ofthe yballbearing,l a free runningconnection is thenY had between the connectingrod 'and 23mounted in the bottom of the cap ort-ion so as tobe in communication-with t e ball bering receiving groove fof` the connecting ro.v- Y' The invention having been ,described, what is claimed as new anduseful is q In combination with a crank shaft and connecting rod, a ballbearing having balls running in a groovegformeddirectly upon the `crank pin of the crank shaft and a race ring in surrounding relation to saidballs, the connecting rod having c a head f portion in Vsurrounding `relation to said race ring, the headA portion of the'connecting rod being `provided with a removable cap, the ball bearing being provided with a retainer enclosed by said race ring andsaidretainerland race ring having interior diameters `suiiicient to permit'the two bein e slippedl around ,the crank lon to the n the crank pin, the'ball bearing receiving oil 5 fromthe crank caseby means of an oil tube cran pin 1n the mounting ofthe ball'bearing,

In testimo sirkiss. REINHARD.

`y whereof he'aixes his signa- 90 

